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Tuvinia alakulica
Taxonomy
Tuvinia alakulica was named by Nikitina et al. (2006). Its type specimen is USNM 485006, a shell (complete shell), and it is a 3D body fossil. Its type locality is Locality 133. 4 kilometers southwest of Alakul Lake, which is in an Abereiddian open shallow subtidal limestone/siltstone in the Alakul Formation of Kazakhstan.
Synonymy list
| Year | Name and author |
|---|---|
| 2006 | Tuvinia alakulica Nikitina et al. pp. 200 - 202 fig. 35.1–4 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
†Tuvinia alakulica Nikitina et al. 2006
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| O. I. Nikitina et al. 2006 | Shell ventribiconvex, hinge-width shorter then maximum width, with rounded to obtuse cardinal extremities; radial ornament coarsely costellate with 15–19 primary ribs and up to 32 ribs in mature specimens. |
Measurements
No measurements are available
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| Source: f = family, o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Aberhan et al. 2004, Hendy 2009, Nesnidal et al. 2013 | |||||
Age range: Abereiddian or 468.00000 to 461.10000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Abereiddian | Kazakhstan | Tuvinia alakulica (type locality: 165483 165485 165539 165543) |